Finding the Fourth Proportional to 505,615.09, 697,744.68 and 276,172.52
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Solution
The fourth proportional to 505,615.09, 697,744.68 and 276,172.52 is: 381,115.82
Step by Step Solution
- Step 1: Write the proportion equation
505,615.09 : 697,744.68 = 276,172.52 : x - Step 2: Convert to fraction form
505,615.09/697,744.68 = 276,172.52/x - Step 3: Cross multiply
505,615.09x = 697,744.68 × 276,172.52 - Step 4: Simplify right side
505,615.09x = 192,697,908,144.09 - Step 5: Solve for x
x = 192,697,908,144.09/505,615.09 - Step 6: Final answer
x = 381,115.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.